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2. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space.

3. Diffuser (thermodynamics) - Wikipedia

   en.wikipedia.org/wiki/Diffuser_(thermodynamics)

   A round diffuser in an HVAC system. Diffusers are very common in heating, ventilating, and air-conditioning systems. [3] Diffusers are used in both all-air and air-water HVAC systems, as part of room air distribution subsystems, and serve several purposes:

4. Baseboard - Wikipedia

   en.wikipedia.org/wiki/Baseboard

   At its simplest, baseboard consists of a simple plank nailed, screwed or glued to the wall; however, particularly in older houses, it can be made up of a number of moldings for decoration. A baseboard differs from a wainscot ; a wainscot typically covers from the floor to around 1-1.5 metres (3' to 5') high (waist or chest height), whereas a ...

5. The 20 Best Diffusers for Curly Hair, from $6 to $430 - AOL

   www.aol.com/16-best-diffusers-curly-hair...

   5. Segbeauty Professional Hair Diffuser Attachment. Best for Heat Distribution. Why We Love It: 6.18 inches in diameter, suitable for 1.73 to 1.77 nozzles, comes in five colors The 114 air outlets ...

6. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   The energy cost of heating is one of the main costs of operating a building in a cold climate. Some central heating plants can switch fuels for reasons of economy and convenience; for example, a home owner may install a wood-fired furnace with electrical backup for occasional unattended operation.

7. Diffuser - Wikipedia

   en.wikipedia.org/wiki/Diffuser

   Diffuser (hair), a blowdryer attachment that diffuses heat as it dries the hair; Diffuser (heat), a cooking item that is placed above a heating element to separate the cooking utensil from the heat source; Diffuser (optics), a device that spreads out or scatters light; Diffuser (sewage), an aerating device for sewage and industrial waste water ...

8. Underfloor heating - Wikipedia

   en.wikipedia.org/wiki/Underfloor_heating

   Costs about $7/million b.t.u. Propane mainly made from oil, less efficient than natural gas by volume, and generally much more expensive on a b.t.u. basis. Produces more carbon dioxide than "methane" on a b.t.u. basis. Costs about $25/million b.t.u. Coal, oil, or waste oil; Electricity; Solar thermal; Wood or other biomass; Bio-fuels

9. 7 Essential Oil Diffusers for Instant Aromatherapy - AOL

   www.aol.com/lifestyle/7-essential-oil-diffusers...

   With a hand-crafted ceramic cover, this diffuser is a fantastic addition to any home. It has an easy-to-use design and long-lasting effects that make it a great diffuser for beginners looking to ...